On April 12, Peter Joules wrote:
> Since I have hooked up a VT220 instead of my VT320 I have a strange
> problem, I would like some advice as to whether this is related to the
> terminal setup or to NetBSD.
> 
> The display gets corrupted by reversed question marks at random points
> in the text.  This happens both during the boot process and during
> normal use.  The terminal is set up as English with a North American
> keyboard.  The comms set up is correct for the MicroVAX 3100 to which it
> is attached.

  Try backing off the speed a notch or two and see if it goes away.
If it does, it's an overrun problem which may be addressable by flow
control.

     -Dave McGuire